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| Criterion |  Growth A/B Testing |  Operations 8D Problem Solving |  Growth Funnel Analysis |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | When many visitors or users drop off along the way, the reason behind the number often stays hidden. Funnel Analysis exposes these transitions and makes visible exactly where the path collapses. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | High | Medium | Medium |
Timedifferent | 1-4 Wochen | 1-6 Wochen | 1-3 h | 45-60 min |
Participantsdifferent | 1-6 | 4-10 | 1-5 | 2-8 |
Formatdifferent | Async | Workshop + async | Async | Workshop + async |
Outputdifferent | Experiment results, Decision log, Learning summary | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Funnel report, Drop-off analysis, Optimization hypotheses | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ExperimentsGrowthAnalyticsValidation | QualityProblem solvingRoot cause | AnalyticsConversionGrowth | AssumptionsRiskExperimentsValidation |